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Matt is a 23 year old male athlete training for a marathon. He is also trying...

Matt is a 23 year old male athlete training for a marathon. He is also trying to lose weight. His height is 5’11”, weight is 235 lbs., usual weight is 252 lbs. He is currently doing a “low-carb” diet that his trainer recommended to lose weight. He finds himself tired after long runs and struggling to achieve his training goals.

  1. Determine Matt’s IBW and percent of IBW. (Show all math calculations)
  1. Determine his percent of UBW. (Show all math calculations)
  1. Calculate his BMI. (Show all math calculations)
  1. Determine his protein needs. (Show all math calculations)
  1. Using the Harris-Benedict equation, calculate his BEE. (Show all math calculations)

Men: BEE = 66.5 + (13.8 x wt./kg.) + (5x ht./cm) – (6.8 x age/yr.)

  1. Consider Matt to be moderately active, calculate his total caloric needs for the day.

(Show all math calculations)

  1. What advice would you give Matt regarding his diet?

Solutions

Expert Solution

A. Matt’s IBW

There are two formulas to calculate the Ideal Body Weight

1.IBW (lb)=106+6x(Ht-60inches)

=106+6x(71-60) 5'11"=5x12+11=60+11=71inches

=106+6x11

=106+66=172lb

2.IBW(Kg)=50+2.3Kgx(Ht-60inches) (DEVINE EQUATION)

=50+2.3x(71-60)

=50+2.3x11=50+25.3=75.3Kg

The formula to calculate the percentage of IBW is WEIGHTX100IBW

HERE THE IBW IS IN Kg so the weight also should convert to Kg

here his weight is 235lb .The equation to convert pounds to Kg is lb x 0.45

so here it is 235 x 0.45 =105.75

when we put this value in the equation

%IBW = 105.75X 100/75.3

= 140.43

B.The formula to calculate the %UBW is current body weight / usual body weight x 100

Here the cuirrent body weight is 235 lbs

Usual body weight is 252lbs when we put this into the equation

%UBW = 235/252 X100 = 93.25%
C. The formula to calculate BMI is  703 x weight (lbs) / [height (in)]2

= 703 x 235lbs /( 71)2

=703 x 235 / 5041= 32.77

D. The protein intake = weight in Kg x protein requirment per Kg

Here an athlete needs protein requirment of 1.2 to 2 grams,since he is on training period we can take the high end of the range. To calculate the weight in Kg devide the weight in lbs by 2.2

so te weight in Kg is 235/2.2 = 106.81

The protein requirment is 106.81 x 2 = 213.63 g/ day

E.Harris benedict equation is BEEMales = 66.5 + (13.75 * Weight) + (5.003 * Height) - (6.775 * Age)

Nightingale answered 2 years ago
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